Seattle Seahawks defensive end Michael Bennett and Seattle Seahawks defensive tackle Ahtyba Rubin close in on Los Angeles Rams quarterback Jared Goff in the first half at CenturyLink Field on Thursday, Dec. 15, ... more

Seattle Seahawks defensive end Michael Bennett and Seattle Seahawks defensive tackle Ahtyba Rubin close in on Los Angeles Rams quarterback Jared Goff in the first half at CenturyLink Field on Thursday, Dec. 15, 2016. (GRANT HINDSLEY, seattlepi.com) less

Photo: GRANT HINDSLEY/SEATTLEPI.COM

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Seahawks quarterback Russell Wilson is pressured by Arizona's Frostee Rucker in the first quarter of the Seattle Seahawks-Arizona Cardinals game at CenturyLink Field in Seattle on Sunday November 15, 2015. ... more

Seahawks quarterback Russell Wilson is pressured by Arizona's Frostee Rucker in the first quarter of the Seattle Seahawks-Arizona Cardinals game at CenturyLink Field in Seattle on Sunday November 15, 2015. (Photography by Scott Eklund/Red Box Pictures) less

Photo: Scott Eklund / Red Box Pictures

The Raiders continue to shuffle their roster, adding a pair of experienced defensive linemen on Monday ahead of this week’s mandatory minicamp.

Rucker spent his first six NFL seasons in Cincinnati, where now-Raiders defensive coordinator Paul Guenther was an assistant coach. Rucker then played a season in Cleveland and the past five seasons with the Cardinals, starting all 16 games last year.

Rucker (6-3, 280), who turns 35 in September, has played in 142 career games with 73 starts, recording 21.5 sacks, 10 passes defensed and eight fumble recoveries.

Rubin, 31, started 32 games for the Seahawks from 2015-16 after playing seven seasons for the Browns, who drafted him out of Iowa State in 2008. The 6-foot-2, 310-pound tackle has played in 143 career games with 107 starts, 15 sacks, seven passes defensed and two interceptions.

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Rubin played in two games last season with Denver before being released. He signed with the Falcons in October and appeared in 10 games with 15 tackles.

Both additions would keep in line with the Raiders’ trend this offseason of adding experienced players under Jon Gruden. The interior defensive line has been a particular point of emphasis - the Raiders also re-signed run-stopping defensive tackle Justin Ellis to a three-year deal and drafted two interior linemen in P.J. Hall and Maurice Hurst.

The Raiders have not yet announced corresponding roster moves for either signing. Those will likely come before the team begins its three-day mandatory minicamp Tuesday.

NFL Network reported Monday that edge rusher Khalil Mack is not expected to be present for the minicamp. Mack has remained absent from Raiders offseason activities amid negotiations over a contract extension.

Mack, the 2016 Defensive Player of the Year, is entering the final season of his rookie deal and set to earn $13.8 million this season under his fifth-year option. Tuesday is the first mandatory practice of the Raiders’ offseason. If Mack misses all three minicamp days, he could face a fine of $84,435 under the CBA.